xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/sdt/tst.sdtargs_tail_call.d (revision 851677fbe21ab9cad62cea9e299167ea661fd1c8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  * Copyright 2024 Oxide Computer Company
26  */
27 
28 /*
29  * ASSERTION: Verify that argN (1..7) variables are properly remapped if the
30  * probe is a tail call.
31  */
32 
33 BEGIN
34 {
35 	/* Timeout after 5 seconds */
36 	timeout = timestamp + 5000000000;
37 	ignore = $1;
38 	pass = 0;
39 }
40 
41 ERROR
42 {
43 	printf("sdt::sdt_test_args_tail_call:test failed.\n");
44 	exit(1);
45 }
46 
47 sdt::sdt_test_args_tail_call:test
48 /arg0 != 1 || arg1 != 2 || arg2 != 3 || arg3 != 4 || arg4 != 5 || arg5 != 6 ||
49     arg6 != 7/
50 {
51 	printf("sdt arg mismatch\n\n");
52 	printf("args are  : %d, %d, %d, %d, %d, %d, %d\n", arg0, arg1, arg2,
53 	    arg3, arg4, arg5, arg6);
54 	printf("should be : 1, 2, 3, 4, 5, 6, 7\n");
55 	exit(1);
56 }
57 
58 sdt::sdt_test_args_tail_call:test
59 {
60 	pass = 1;
61 }
62 
63 /*
64  * Since this is a tail call, on-disk there's no RET instruction.  We rely
65  * on krtld patching one in which should allow us to register a probe here.
66  */
67 fbt::sdt_test_args_tail_call:return
68 /pass/
69 {
70 	exit(0);
71 }
72 
73 profile:::tick-1
74 /timestamp > timeout/
75 {
76 	trace("test timed out");
77 	exit(1);
78 }
79